1. Binary logic / Boolean Algebra

2. "One", by Three Dog Night (1969)

3. The limits of probability (e.g., 0 to 1, inclusive)

4. Asimov's Zeroth Law of Robotics: *"A robot may not injure humanity or, through inaction, allow humanity to come to harm."*

5. Zeroth Law of Thermodynamics: *"If two systems are in thermal equilibrium with a third system, then they are in thermal equilibrium with each other."*

6. First Principles: *"Basic propositions or assumptions that cannot be deduced from any other proposition or assumption."*

7. First Rule of Fight Club: *"You don't talk about Fight Club!"*

8. A one-off character on The Jetsons (e.g., "Space-Boy Zoom and his dog Zero!").

9. An clue given in an episode of Mandrake the Magician (e.g., "Where Zero Meets Zero")

10. A place-holder in in the Arabic number system.

_________________

*No love for Hamas, Hezbollah, Iranian Leadership, Islamic Jihad, other Islamic terrorist groups, OR their supporters and sympathizers.*